Grate ideas. One more you might or might not have thought of...On the 18.5" WSMs, if you go to Home Despot or Blowes or a similar type place and buy a couple of "garage door handles" they fit pretty good using the same bolts that hold the upper and lower grates in place. Or is it the lower grate and the water pan. Can't remember, it's been a while, but they fit on the 18.5 with no drilling holes. You might want to check the hole spacing on the WSM 22. They mount vertically on the main body.
The Battle Wagon used on the BBQ Pitmasters Show "Chicken Wang, Chicken Wang, Chicken Wang" NOW lives in O-Town, Floriddy
Stump's Smoker "Baby" (Pretty in Pink)
Stump's Smoker "Tailgater"
Stump's Smoker "Monster" (01/08/2013)
Weber Smokey Joe (Homer Simpson Edition Mini BGE